Abstract:
A telecommunications system for improving quality of service (QoS) to users via the implementation of an extended outer loop power control algorithm. A radio resource manager (RRM) operates to determine the number of channels allotted to users within a network at a certain time. The RRM implements the extended outer loop power control algorithm for each allotted channel, thus determining SIR reference values for each allotted channel. The RRM ensures that the SIR reference value for any channel does not fall below a predetermined minimum value. The SIR reference value to be used for all channels in use is determined as the highest of all the calculated SIR reference values. The extended outer loop power control algorithm can be implemented at a mobile station level, base station level or radio network controller level.
Abstract:
송신된 전력 제어 명령을 해석하기 위하여 좌표계의 비대칭 결정 영역을 규정하는 방법, 수신기, 및 컴퓨터 프로그램 제품이 공개된다. 수신기에서 송신된 전력 제어 명령을 결정하는 방법은 수신기에서 전력 증가 제어 명령과 관련된 좌표계의 제 1 결정 영역 및 수신기에서 전력 감소 제어 명령과 관련된 좌표계의 제 2 결정 영역을 규정하는 단계를 포함한 수 있고, 여기서 제 1 및 제 2 영역은 서로 비대칭이다. 광대역 코드 분할 다중 접속 통신 시스템에서의 소프트 핸드오버 모드 동안 송신된 전력 제어 명령을 결정하는 방법이 또한 논의되며, 여기서 복수의 송신기로부터 수신되는 합성된 전력 제어 명령의 제 1 결정은 합성된 전력 제어 명령을 제공하기 위하여 복수의 송신기로부터 수신되는 합성된 전력 제어 명령의 제 2 결정과 합성될 수 있다. 관련 회로가 또한 공개된다.
Abstract:
Disclosed is a method of generating a detection signal for detecting energy in a spread-spectrum signal, comprising: de-spreading the spread-spectrum signal by applying a predetermined spreading code to obtain a sequence of de-spread signal symbols (202A-202D); accumulating a number of said signal symbols to obtain a single detection signal. The accumulation includes: obtaining a first and a second subset of said de-spread signal symbols, wherein the symbols of the first subset have values that are known to the receiver or at least known to be the same for all symbols of the first subset, and wherein the symbols of the second subset have unknown values; coherently accumulating the symbols of the first subset to obtain a first partial detection signal (203A, 203B, 203C); non-coherently accumulating the symbols of the second subset to obtain a second partial detection signal (204A, 204B, 204C); and combining the first and second partial detection signals to obtain the single detection signal (208).
Abstract:
Methods and apparatus are described for estimating a gain offset between two channels in a communication system. The gain offset arises from the system's transmission of signals on the two channels at different powers. The estimated gain offset is used for determining a set of complex channel estimates.
Abstract:
상이한 듀플렉스 주파수 분할 거리의 캐리어들 간에 핸드오버를 제공하는 방법 및 장치가 제공된다. 이동 단말기는 고정 및 가변 듀플렉스 둘 다에서 동작하도록 구성된다. 이 성능은 필요한 경우 쌍을 이루지 않는 업링크 및 다운링크 주파수 캐리어로 동작하여, 예를 들어 WCDMA 시스템에서 비대칭 업링크 및 다운링크를 사용하여 셀룰러 시스템에서 스펙트럼 이용도(용량)를 크게 증가시킬 수 있다. 업링크, 다운링크, 핸드오버, 캐리어, 스펙트럼
Abstract:
Information systems, detectors, and methods for a communication link, such as the downlink of a cellular telephone system, reduce the problem of uplink transmit power peaks when the uplink is out of synchronization (OoS). One method of indicating that a first link to a communication node is OoS includes the step of including an OoS signal in signals that are sent by the node on a second link. The OoS signal includes at least one data bit transmitted by the node that indicates that the first link is synchronized or OoS. A method of determining that a first link to a communication node is OoS includes the step of detecting an OoS signal in signals that are sent by the node on a second link. The OoS signal includes at least one data bit that indicates that the first link is synchronized or OoS, comprising a change- of-sign of symbols, a power level offset between information elements or different scale factors on the pilot symbols. When the first link is OoS, transmit power control commands from the second link are excluded from determining transmit power on the first link. ® KIPO & WIPO 2007
Abstract:
A radio frequency transmitter is power controlled using a controlling system including an integrating controller, together with an inner and an outer control loop. A tracking signal supplied by the inner loop to the integrating controller of the outer loop is used to avoid windup problems when the transmitted power is saturated.
Abstract:
Methods, receivers, and computer program products for defining asymmetric decision regions of a symbol space to interpret transmitted power control commands are disclosed. A method of determining transmitted power control commands at a. receiver can include defining a first decision region of a symbol space associated with a first power control command at the receiver and a second decision region of the symbol space associated with a second power control command at the receiver where the first and second regions are asymmetric with one another. Methods of determining a transmitted power control command during soft handover mode in a wideband code division multiple access communications system are also discussed wherein a first determination of a combined power control command received from a plurality of transmitters can be combined with a second determination of the combined power control command received from the plurality of transmitters to provide a combined power control command. Related circuits are, disclosed as well.
Abstract:
CDMA 시스템과 같은 셀룰러 통신 시스템에서 사용하기 위한 이동 통신 단말기는, 신호 채널을 추출하는 처리 수단을 구비하는 무선 통신신호 반송 신호채널을 수신하는 전자 회로(200)를 포함한다. 전자 회로(200)는, 적어도 두 개의 규정된 간섭 클래스 중 하나의 유형을 분류하는 정보를 가진 신호로서 선택되는 전자 회로내의 선택된 신호를 평가함으로써, 통신 품질에 영향을 미치는 간섭의 유형을 분류하도록 적응된다.